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Oil Lub Piston LER LTR & Oil-Free Piston LFR

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Reliable piston performance

Space and reliability are key when it comes to air supply in mining equipment and service vehicles. Our range of hydraulic driven compressors is made specifically for these applications. You can chose your hydraulic piston solution from our oil injected LE range, our oil-free LF or the LT high pressure variants up to 30 bar.

With a proven reliability in the field of thousands of compressors, we deliver compressors that can be trusted in a cost effective solution. It comes in a tiny package that can be adapted with options like vibration dampers, pressure switches or heavier duty air filtration for the toughest environments.

Available from 140 to 1100 l/min (5 to 39 cfm) free air delivery.

Compact packages

Much smaller than belt driven equivalent

Trouble-free usage

Corrosion resistant materials like stainless steel and aluminum, ensures years of trouble-free usage

Equipped with load/ unload valves

Atlas Copco hydraulic driven piston compressors come also equipped with load / unload valves to adapt air production independently from the oil supply to the motor

Features and benefits

Thanks to our direct drive concept, our compressors offer compact packages much smaller than belt driven equivalent, while at the same time removing the need for complicated belt replacement. This does however do not compromise the ease of maintenance as all the components needing service are conveniently placed in one location. Using corrosion resistant materials like stainless steel and aluminum, you can rest assured that the compressor will give you years of trouble-free usage.

Our hydraulic driven piston compressors come also equipped with load / unload valves to adapt air production independently from the oil supply to the motor. The capacity of the motor itself can be selected from a wide range to adapt the compressor oil flow and pressure to the size of your oil pump.

Qualities in the details

Optimized fan design for efficient cooling and optimal compressor performance.
Railway qualified vibration dampers for a minimum transfer of vibrations from and to the compressor package.
High performance finned tube inter- and after-cooler.
Load/unload valve with integrated blow- off function and non-return valve for low starting torque and easy control.
Top quality direct drive aluminum compressor block in V-arrangement, for a compact and light-weight installation, high performance and extended lifetime even in the harshest ambient conditions.
High efficiency industrial air intake filter for trouble-free operation.
High efficiency hydraulic motor with superior performance and low noise levels, working even at high hydraulic operating pressures.
Hydraulic connections according to international standards

Technical specifications

10 BAR LER
Compressor type	Maximum working pressure		Effective working pressure	FAD at effective working pressure and minimum speed of 1200 rpm (40 Hz)			Installed recommended shaft power		FAD at effective working pressure and maximum speed of 1800 rpm (60 Hz)			Installed recommended shaft power
	bar(e)	psig	bar(e)	l/s	m3/min	cfm	kW	hp	l/s	m3/min	cfm	kW	hp
LER 3-10	10	145	7	3.5	0.21	7.5	1.5	2.0	5.1	0.31	10.8	2.6	3.5
LER 5-10	10	145	7	6.7	0.40	14.2	2.9	3.8	9.7	0.58	20.6	4.6	6.2
LER 7-10	10	145	7	9.4	0.56	19.8	4.0	5.3	13.6	0.82	28.8	6.2	8.3
LER 10-10	10	145	7	12.6	0.75	26.6	5.7	7.6	18.2	1.09	38.6	8.6	11.5
10 BAR LFR
LFR 3-10	10	145	7	3.2	0.19	6.8	1.6	2.1	4.6	0.28	9.7	2.3	3.1
LFR 5-10	10	145	7	6.6	0.39	13.9	3.0	4.0	9.1	0.55	19.3	4.3	5.8
LFR 7-10	10	145	7	8.8	0.53	18.6	3.8	5.1	12.0	0.72	25.4	5.8	7.7
LFR 10-10	10	145	7	12.4	0.74	26.3	5.3	7.1	18.2	1.09	38.6	8.6	11.5
15 BAR LTR
LTR 3-15	15	218	12	3.2	0.19	6.8	1.6	2.1	4.7	0.28	10.0	2.5	3.3
LTR 5-15	15	218	12	5.4	11.4	11.4	2.9	3.9	7.9	0.47	16.7	4.5	6.1
LTR 7-15	15	218	12	7.4	0.44	15.6	4.0	5.4	10.9	0.65	23.1	6.3	8.5
LTR 10-15	15	218	12	9.4	0.56	19.8	5.5	7.4	Limited at 1500 rpm
20 BAR LTR
LTR 3-20	20	290	15	2.4	0.14	5.1	1.4	1.8	3.8	0.23	8.1	2.2	2.9
LTR 5-20	20	290	15	4.1	0.24	8.6	2.4	3.2	6.4	0.38	13.6	3.7	4.9
LTR 7-20	20	290	15	5.4	0.33	11.5	3.3	4.4	8.5	0.51	18.0	5.1	6.9
LTR 10-20	20	290	15	7.4	0.45	15.8	4.4	5.9	14.0	0.84	29.7	8.0	10.7
30 BAR LTR
LTR 3-30	30	435	20	2.3	0.14	4.9	1.5	2.0	3.6	0.22	7.6	2.4	3.2
LTR 5-30	30	435	20	4.0	0.24	8.5	2.6	3.5	6.3	0.38	13.3	4.1	5.5
LTR 7-30	30	435	20	5.4	0.32	11.4	3.6	4.8	8.4	0.50	17.8	5.6	7.5
LTR 10-30	30	435	20	7.3	0.44	15.4	4.8	6.4	Limited at 1500 rpm

Variants

High-pressure compressor variant

Two-stage up to 30 bar.
Equipped with intercooler for improved efficiency.

Oil-free compressor variant

No oil in the compressed air.
Environmentally friendly oil-free piston.
Less maintenance.

Options

Heavy duty inlet filter: For efficient operation in dusty environments and longer maintenance intervals.
Railway-qualified vibration dampers: For a minimum transfer of vibrations from and to the compressor and motor.
Protection canopy: Protecting the compressor from external particles and to place the compressor outside.
Different selection of hydraulic motors: For an optimal balance between the performance of the compressor and the available hydraulic oil flow and pressure.
Electric motor: High efficiency, totally enclosed fan-cooled (TEFC), IP 55, class F direct coupled railway-approved electric motor with greased-for-life bearings.

Mobility Compressors and Filters

LFxR 0.7-1.0 FF DC Pantograph, Oil-free Piston Railway Compressor with SDR Railway Membrane Dryer?

Oil-free Pantograph Compressor LFpR/LFxR

For use on any electrically driven vehicle with a pneumatic pantograph, LFpR and LFxR oil-free piston pantograph compressors offer a space-saving design, easy installation and low maintenance. Available from 40 to 83 l/min (1.4 to 3 cfm) free air delivery.

Oil-injected Screw Compressor GAR 5-37

The oil-injected, air-cooled GAR 5-37 screw compressors are designed for mobility applications in extreme ambient conditions. They are a reliable, compact, low-weight, low-noise solution meant to be installed on top of, inside or underneath the vehicle. Available from 500 to 4500 l/min (18 to 160 cfm) free air delivery

Oil-free Scroll Compressor SFR 2-12

The SFR orbiting scroll compressor is an oil-free, low maintenance compressed air solution validated for all mobility applications. Reliable, rated for a 100% duty cycle and suited for the harshest conditions. The SFR offers performance and flexibility with low noise levels, vibrations and life cycle costs. To be installed on top of, inside or underneath the vehicle; special light-weight models for electric and hybrid buses. Available from 200 to 1550 l/min (7 to 55 cfm) free air delivery

Air filtration and drying solutions

Our range of air filtration and drying systems remove oil, dust and moisture from the compressed air with class-leading performance to protect your equipment and air brake network. Our portfolio covers the needs of every Mobility vehicle from tramways to heavy-duty locomotives with service proven and innovative solutions

Oil Lub Piston LER LTR & Oil-Free Piston LFR